This retrospective cohort study from a single academic hand surgery center establishes MCID and SCB thresholds for the VAS-pain instrument in nonshoulder hand and upper extremity postoperative patients. No prior benchmarks existed for this specific population. The study used both anchor-based and distribution-based methods to derive population-level thresholds for interpreting clinical meaningfulness of VAS-pain changes.
Reading hand surgery literature requires a number to anchor the question: how much VAS-pain improvement actually matters to patients? Before this study, no MCID or SCB had been established for the VAS-pain instrument in this specific population, and values from shoulder or general surgery cohorts were being borrowed without validation.
When you see a hand surgery trial reporting a statistically significant VAS-pain improvement, check whether it clears 1.6–1.9 points (MCID) before calling it clinically meaningful. If it clears 2.2–2.6 points (SCB), patients in that study felt substantially better.
When designing a clinical trial or powering a study in a hand surgery population, use these thresholds as the minimally important effect size for sample size calculations. One critical limit: these numbers apply to groups, not individuals. Do not use them to tell a patient in clinic that their 2-point improvement is or is not meaningful — that requires shared clinical judgment.
This retrospective cohort study from a single academic hand surgery center establishes MCID and SCB thresholds for the VAS-pain instrument in nonshoulder hand and upper extremity postoperative patients. No prior benchmarks existed for this specific population. The study used both anchor-based and distribution-based methods to derive population-level thresholds for interpreting clinical meaningfulness of VAS-pain changes.
Reading hand surgery literature requires a number to anchor the question: how much VAS-pain improvement actually matters to patients? Before this study, no MCID or SCB had been established for the VAS-pain instrument in this specific population, and values from shoulder or general surgery cohorts were being borrowed without validation.
When you see a hand surgery trial reporting a statistically significant VAS-pain improvement, check whether it clears 1.6–1.9 points (MCID) before calling it clinically meaningful. If it clears 2.2–2.6 points (SCB), patients in that study felt substantially better.
When designing a clinical trial or powering a study in a hand surgery population, use these thresholds as the minimally important effect size for sample size calculations. One critical limit: these numbers apply to groups, not individuals. Do not use them to tell a patient in clinic that their 2-point improvement is or is not meaningful — that requires shared clinical judgment.